Home / 13,431,188.67-18,534,863.07-7,470,555.27

Finding the Fourth Proportional to 13,431,188.67, 18,534,863.07 and 7,470,555.27

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Solution

The fourth proportional to 13,431,188.67, 18,534,863.07 and 7,470,555.27 is: 10,309,267.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,431,188.67 : 18,534,863.07 = 7,470,555.27 : x
  2. Step 2: Convert to fraction form
    13,431,188.67/18,534,863.07 = 7,470,555.27/x
  3. Step 3: Cross multiply
    13,431,188.67x = 18,534,863.07 × 7,470,555.27
  4. Step 4: Simplify right side
    13,431,188.67x = 138,465,718,948,964.11
  5. Step 5: Solve for x
    x = 138,465,718,948,964.11/13,431,188.67
  6. Step 6: Final answer
    x = 10,309,267.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.